An insulating device for busbar

Abstract

The application discloses an insulating device for busbars, and relates to the technical field of insulating devices, which comprises an insulating base, wherein metal sliding rails are arranged in parallel along the length direction of the insulating base; limit seats, wiring sliding seats and transmission sliding seats are arranged along the length direction of the insulating base; the wiring sliding seats are arranged in linear arrangement between the limit seats and the transmission sliding seats; linkage sliding frames are arranged between the limit seats and the wiring sliding seats, between adjacent wiring sliding seats and between the wiring sliding seats and the transmission sliding seats; fastening studs for limiting the sliding of the linkage sliding frames are arranged on the limit seats, the wiring sliding seats and the transmission sliding seats; and ground wires electrically connected with the ground are arranged on the insulating base. In use, all the wiring sliding seats are driven to expand or contract synchronously at equal intervals through the cooperation of the threaded rotating shafts and the linkage sliding frames, the spacing between the wiring sliding seats can be flexibly adjusted, the insulating device is suitable for busbars of different specifications, and it is unnecessary to adjust the supports one by one, so that the uniform arrangement of the wiring positions is ensured.

Description

Technical Field

[0001] This invention relates to the field of insulation device technology, and more specifically to an insulation device for busbar copper busbars. Background Technology

[0002] As the core conductive component for power transmission inside energy storage cabinets and distribution cabinets, the busbar is responsible for the collection and distribution of multiple circuit currents.

[0003] Phase-to-phase and phase-to-ground insulation is crucial for ensuring the safe operation of electrical equipment. Existing busbar insulation devices often employ an integrated insulation frame and a fixed busbar support structure. Each phase busbar is placed separately by insulation slots, and phase-to-phase isolation is achieved through insulation shells or insulation partitions. This prevents short circuits caused by metal foreign objects bridging together. Such insulation frames are mostly injection molded in one piece, and the slot positions are pre-fixed to achieve positioning insulation of the busbars.

[0004] Because there are many connection ports on the same group of copper busbars, when using distributed independent insulation supports, the interface needs to be positioned one by one during the assembly process. It is also difficult to ensure that the copper busbars of each phase are arranged at equal intervals. Some connection ports are too close together, which makes it difficult to meet the insulation requirements. In addition, when assembling the integrated closed insulation frame, the cable needs to be passed through a relatively narrow wire hole, which makes disassembly and assembly more cumbersome when performing maintenance on the busbar wiring. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide an insulation device for busbars. The problem to be solved is that during the assembly and maintenance of busbars, the dispersed and independent insulation supports make it difficult to ensure the equidistant arrangement of the busbars, the insulation of close-range connection ports is difficult to meet the standards, the cable laying of the integrated insulation frame is difficult, and the wiring and maintenance disassembly and assembly process of the busbars is cumbersome.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an insulating device for a busbar, comprising an insulating base, wherein the insulating base is provided with parallel metal slide rails along its length direction, and the insulating base is provided with a limiting seat, a wiring slide, and a transmission slide along its length direction, wherein the wiring slides are arranged linearly between the limiting seat and the transmission slide, and a linkage slide is provided between the limiting seat and the wiring slide, between adjacent wiring slides, and between the wiring slide and the transmission slide, wherein the limiting seat, the wiring slide, and the transmission slide are all provided with fastening studs for limiting the sliding of the linkage slide, and a grounding wire electrically connected to the ground wire is provided on the insulating base;

[0008] The insulating base has a post area along its centerline, and the transmission slide has a threaded protrusion at one end extending outside the post area. A threaded shaft that is threadedly connected to the insulating base is rotatably connected to the threaded protrusion.

[0009] As a preferred embodiment of the insulating device for busbars according to the present invention, the fastening studs are fixedly installed in the middle section of the wiring slide, and the wiring slide has symmetrically arranged wire-passing grooves along its centerline, the wire-passing grooves being arranged corresponding to the wire post area.

[0010] As a preferred embodiment of the insulating device for busbars described in this invention, wherein: one end of the fastening stud protruding from the linkage slide is provided with a nut that is threadedly connected, the fastening stud is covered with an insulating sleeve, and an insulating block is fixedly installed on the insulating sleeve on the fastening stud.

[0011] As a preferred embodiment of the insulating device for busbars described in this invention, one end of the linkage slide is provided with a protruding end, and the other end of the linkage slide is provided with a mating end adapted to the protruding end. An adjusting through groove for limiting the sliding of the stud insulating block is opened in the protruding end.

[0012] As a preferred embodiment of the insulating device for the busbar described in this invention, the mating end is recessed inward on the side near the protruding end, a sliding insulating block is fixedly installed on the inner side of the mating end, and the sliding insulating block is adapted to the adjusting through groove.

[0013] As a preferred embodiment of the insulating device for busbars described in this invention, the inner sides of both the slide insulating block and the stud insulating block are provided with arc grooves for fitting the terminals.

[0014] As a preferred embodiment of the insulating device for busbars described in this invention, the limiting seat, the wiring slide, and the transmission slide are all provided with snap-fit ​​ends adapted to the metal slide rail on the side near the insulating base. The limiting seat is detached and installed on the end of the insulating base away from the transmission slide by limiting bolts.

[0015] As a preferred embodiment of the insulating device for busbars described in this invention, the metal slide rail is provided with a conductive groove along its length, the wiring slide and the transmission slide are slidably arranged in the conductive groove through their snap-fit ​​ends, the conductive groove has an opening at one end facing the limiting seat, the insulating base is also provided with a conductive wire electrically connected to the connector on the grounding wire, and the metal contacts between the conductive grooves are electrically connected through the conductive wire.

[0016] As a preferred embodiment of the insulating device for busbars according to the present invention, the insulating base has insulating pads symmetrically arranged at its four corners, and the insulating base has side lugs fixedly installed at both ends for assembly with the busbar.

[0017] In summary, the present invention has at least one of the following beneficial effects:

[0018] 1. This invention uses a threaded shaft in conjunction with a linkage slide to drive all wiring slides to extend and retract synchronously at equal intervals. This allows for flexible adjustment of the spacing between wiring slides, adapting to different specifications of busbars, eliminating the need to adjust the supports one by one, and ensuring uniform arrangement of wiring positions.

[0019] 2. In this invention, the sliding carriage insulating block and the stud insulating block are connected to each other, and the arc groove wraps the busbar terminal to form a double-layer insulation structure, which effectively isolates adjacent connection points.

[0020] 3. The present invention allows for flexible increase or decrease in the number of wiring slides through a detachable limiting seat structure. At the same time, it is equipped with a conductive groove, conductive wire and grounding wire to form a grounding discharge circuit, which can match the busbars with different numbers of wiring ports. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a structural diagram from the rear view of the present invention;

[0024] Figure 3 This is a structural diagram of the insulating base of the present invention;

[0025] Figure 4 This is a structural diagram showing the assembly of the wiring slide and the transmission slide of the present invention.

[0026] Figure 5 This is a structural diagram of the limiting seat of the present invention;

[0027] Figure 6 This is a structural diagram of the wiring slide of the present invention;

[0028] Figure 7 This is a structural diagram of the linkage carriage of the present invention;

[0029] Figure 8 This is a structural diagram of the transmission slide of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Insulating base; 11. Wire post area; 12. Insulating pad; 13. Side lug; 2. Metal slide rail; 21. Conductive groove; 22. Opening; 23. Conductive wire; 3. Limiting seat; 31. Limiting bolt; 4. Wiring slide; 41. Wire groove; 5. Transmission slide; 51. Threaded protrusion; 52. Threaded shaft; 6. Linkage slide; 61. Protruding end; 611. Adjustment through groove; 62. Connecting end; 621. Slide insulating block; 7. Grounding wire; 8. Fastening stud; 81. Stud insulating block. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] This invention discloses an insulation device for busbars.

[0034] Example, refer to Figure 1-8 This invention provides an insulation device for a busbar, comprising an insulating base 1. The insulating base 1 has parallel metal slide rails 2 arranged along its length. The insulating base 1 also has a limiting seat 3, a wiring slide 4, and a transmission slide 5 arranged linearly between the limiting seat 3 and the transmission slide 5. A linkage slide 6 is provided between the limiting seat 3 and the wiring slide 4, between adjacent wiring slides 4, and between the wiring slide 4 and the transmission slide 5. Fastening studs 8 are provided on the limiting seat 3, the wiring slide 4, and the transmission slide 5 to restrict the sliding of the linkage slide 6. The base 1 is equipped with a grounding wire 7 that is electrically connected to the ground wire. The insulating base 1 has a wire post area 11 along its centerline. The transmission slide 5 extends to one end outside the wire post area 11 and is provided with a threaded protrusion 51. A threaded shaft 52 that is threadedly connected to the insulating base 1 is rotatably connected to the threaded protrusion 51. The insulating base 1 is the main support foundation of this device and is used for positioning and assembly with the busbar. The metal slide rail 2 provides guidance for each sliding component. By rotating the threaded shaft 52, the transmission slide 5 can be driven to move along the metal slide rail 2. Relying on multiple sets of linkage slides 6, all wiring slides 4 can be moved synchronously to achieve equidistant expansion or contraction. The wire post area 11 has reserved space for busbar wiring operations.

[0035] The fastening stud 8 is fixedly installed in the middle section of the wiring slide 4. The wiring slide 4 has symmetrically arranged wire-passing grooves 41 along its center line. The wire-passing grooves 41 are arranged corresponding to the wire post area 11. The wire-passing grooves 41 pass through the wiring slide 4. Cables and terminals can pass through the wire-passing grooves 41 to extend to the wire post area 11 to complete the wiring. The fastening stud 8 serves as the sliding fulcrum of the linkage slide 6 to ensure stable transmission of the linkage structure.

[0036] The end of the fastening stud 8 that protrudes from the linkage slide 6 is provided with a nut that is threadedly connected. The fastening stud 8 is covered with an insulating sleeve. A stud insulating block 81 is fixedly installed on the insulating sleeve on the fastening stud 8. The insulating sleeve isolates the metal parts of the fastening stud 8 to prevent conductivity. The stud insulating block 81 moves synchronously with the fastening stud 8 to achieve electrical isolation.

[0037] One end of the linkage slide 6 is provided with a protruding end 61, and the other end of the linkage slide 6 is provided with a mating end 62 adapted to the protruding end 61. An adjustment slot 611 for limiting the sliding of the stud insulating block 81 is opened in the protruding end 61. Adjacent linkage slides 6 are connected and cooperated with each other by the protruding end 61 and the mating end 62. The adjustment slot 611 provides a sliding allowance for the stud insulating block 81 to ensure the accurate positioning of the terminal block after the slide spacing is adjusted.

[0038] The mating end 62 is recessed inward on the side near the protruding end 61. A slide insulating block 621 is fixedly installed on the inner side of the mating end 62, and the slide insulating block 621 is adapted to the adjusting through groove 611. The recessed structure provides clearance space for the mutual transmission of adjacent linkage slides 6. The slide insulating block 621 and the stud insulating block 81 form a double-layer insulation protection to isolate adjacent wiring positions.

[0039] Both the slide insulating block 621 and the stud insulating block 81 have arc grooves on their inner sides for fitting the terminal blocks. The arc grooves match the shape of the busbar terminal blocks, which can fit and wrap the busbar terminal block components, improve the positioning effect, and increase the insulation contact area.

[0040] The limiting seat 3, the wiring slide 4, and the transmission slide 5 are all provided with a snap-fit ​​end that is compatible with the metal slide rail 2 on the side near the insulating base 1. The limiting seat 3 is installed on the end of the insulating base 1 away from the transmission slide 5 by means of the limiting bolt 31. The snap-fit ​​end realizes the sliding assembly of the slide and the metal slide rail 2. The limiting seat 3, as an end positioning component, is locked in position by the limiting bolt 31 to limit the maximum retraction stroke of the entire linkage structure. By disassembling it, the number of wiring slides 4 can be freely increased or decreased to always match the corresponding number of terminals on the busbar.

[0041] The metal slide rail 2 has a conductive groove 21 along its length. The wiring slide 4 and the transmission slide 5 are slidably arranged in the conductive groove 21 through their snap-fit ​​ends. The conductive groove 21 has an opening 22 at one end facing the limiting seat 3. The insulating base 1 is also provided with a conductive wire 23 that is electrically connected to the connector on the grounding wire 7. The metal contacts between the conductive grooves 21 are electrically connected through the conductive wire 23. The conductive groove 21 is provided with grounding contacts, which are uniformly connected to the grounding wire 7 through the conductive wire 23. When leakage occurs, the charge is quickly discharged. The opening 22 facilitates the assembly, addition, removal, and maintenance of the limiting slide.

[0042] Insulating pads 12 are symmetrically arranged at the four corners of the insulating base 1. Side ears 13 for assembly with copper busbars are fixedly installed at both ends of the insulating base 1. The insulating pads 12 isolate the insulating base 1 from the sheet metal of the cabinet. The side ears 13 are provided with mounting holes for ground insulation. With the help of bolts, the entire insulating device can be fixed inside the distribution cabinet or energy storage cabinet.

[0043] When the insulation device for the busbar is put into use, the whole machine is first fixed to the preset position of the cabinet by means of the side ears 13 at both ends of the insulation base 1. The insulation pad 12 supports the insulation base 1 and isolates it from the cabinet sheet metal to form ground insulation. Then, the limit seat 3 is disassembled and installed according to the number of busbar terminals, and the wiring slide 4 is matched and added or removed to complete the pre-installation of each sliding component.

[0044] The operator rotates the threaded shaft 52, driving the threaded protrusion 51 to move the transmission slide 5 along the metal slide rail 2. The transmission slide 5 synchronously pulls all the wiring slides 4 to move linearly through each set of linkage slides 6. The linkage slides 6 rely on the interlocking of the protruding end 61 and the docking end 62. The stud insulating block 81 slides along the adjusting through groove 611 to adaptively compensate for the displacement, so that the limit seat 3, each wiring slide 4, and the transmission slide 5 are equidistantly unfolded. After adjusting to the target spacing, the fastening stud 8 is tightened to lock the position of the linkage slide 6. The busbar terminal is placed in the arc groove of the slide insulating block 621 and the stud insulating block 81 to achieve positioning and wrapping. The cable passes through the wire groove 41 and extends to the terminal area 11 to complete the wiring operation.

[0045] During operation, the grounding contact in the conductive groove 21 is connected to the grounding wire 7 via the conductive wire 23, which can quickly discharge the current in case of leakage. When it is necessary to inspect or adjust the wiring spacing, loosen the fastening stud 8 and turn the threaded shaft 52 in the opposite direction to drive all the slides to retract synchronously, releasing the wiring area and facilitating the disassembly and maintenance of cables.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An insulating device for a busbar, characterized in that: The device includes an insulating base (1), which has parallel metal slide rails (2) arranged along its length. The insulating base (1) also has a limiting seat (3), a wiring slide (4), and a transmission slide (5) arranged along its length. The wiring slides (4) are arranged linearly between the limiting seat (3) and the transmission slide (5). A linkage slide (6) is provided between the limiting seat (3) and the wiring slide (4), between adjacent wiring slides (4), and between the wiring slide (4) and the transmission slide (5). The limiting seat (3), the wiring slide (4), and the transmission slide (5) are all provided with fastening studs (8) for limiting the sliding of the linkage slide (6). The insulating base (1) is provided with a grounding wire (7) that is electrically connected to the ground wire. The insulating base (1) has a post area (11) along its centerline. The transmission slide (5) has a threaded protrusion (51) at one end extending outside the post area (11). A threaded shaft (52) is rotatably connected to the insulating base (1) and is threadedly engaged with the threaded protrusion (51).

2. The insulating device for busbars according to claim 1, characterized in that: The fastening stud (8) is fixedly installed in the middle section of the wiring slide (4). The wiring slide (4) has symmetrically arranged wire grooves (41) along its centerline. The wire grooves (41) are arranged corresponding to the wire post area (11).

3. The insulating device for busbars according to claim 2, characterized in that: The fastening stud (8) has a nut with a threaded connection at one end protruding from the linkage slide (6). The fastening stud (8) is covered with an insulating sleeve. A stud insulating block (81) is fixedly installed on the insulating sleeve of the fastening stud (8).

4. The insulating device for busbars according to claim 1, characterized in that: One end of the linkage slide (6) is provided with a protruding end (61), and the other end of the linkage slide (6) is provided with a mating end (62) adapted to the protruding end (61). An adjustment through groove (611) for limiting the sliding of the stud insulating block (81) is provided in the protruding end (61).

5. The insulating device for a busbar according to claim 4, characterized in that: The mating end (62) is recessed inward on the side near the protruding end (61), and a slide insulating block (621) is fixedly installed on the inner side of the mating end (62), and the slide insulating block (621) is adapted to the adjusting through groove (611).

6. The insulating device for a busbar according to claim 5, characterized in that: Both the inner sides of the carriage insulating block (621) and the stud insulating block (81) are provided with arc grooves for fitting the terminal blocks.

7. The insulating device for a busbar according to claim 1, characterized in that: The limiting seat (3), wiring slide (4) and transmission slide (5) are all provided with a snap-fit ​​end that is compatible with the metal slide rail (2) on the side of the insulating base (1) near the limiting base (1). The limiting seat (3) is disassembled and installed on the end of the insulating base (1) away from the transmission slide (5) by limiting bolt (31).

8. The insulating device for a busbar according to claim 7, characterized in that: The metal slide rail (2) has a conductive groove (21) along its length. The wiring slide (4) and the transmission slide (5) are slidably arranged in the conductive groove (21) through their snap-fit ​​ends. The conductive groove (21) has an opening (22) at one end facing the limiting seat (3). The insulating base (1) is also provided with a conductive wire (23) that is electrically connected to the connector on the grounding wire (7). The metal contacts between the conductive grooves (21) are electrically connected through the conductive wire (23).

9. The insulating device for a busbar according to claim 1, characterized in that: Insulating pads (12) are symmetrically arranged at the four corners of the insulating base (1), and side lugs (13) for assembling with copper busbars are fixedly installed at both ends of the insulating base (1).

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